To start, we were dispatched as a basic unit normal traffic for a sick person. The call ended up being way more serious. Pt presented with cyanosis, shortness of breath, and an o2 sat of 68-70% on room air. My immediate thought was we have to boogie. I don’t have the equipment to rule out many of the serious problems that could be happening with the pt so I contacted dispatch to ask where the nearest ALS unit was located. They were about equal distance from the nearest hospital so I decided to transport L&S. Seems pretty standard for how a basic unit should’ve handled the call. My issue is, I was taken back by the incompetence and terrible pt care performed by my partner. The whole call they had a nonchalant attitude and displayed an obvious lack of knowledge asking the pt questions such as if an 02 sat of 60% was normal for them. The police officers in the room were more worried about the pt’s condition than my partner. My partner didn’t recognize the cyanosis or that the pt overall looked like they were in terrible shape. The 02 reading did not concern them at all. Rapid transport wasn’t even something they were considering. As far as treatment they stated “I guess we can put them on 2 liters.” I promptly said that they needed high flow 02 and rapid transport. Driving to the hospital I had to continuously shout instructions to them. We were unable to obtain a proper history from the pt or family but the pt was maintaining an 02 sat in the mid 80’s on 10lpm via NRB. My partner made the decision to bump the pt down to a NC because the mask was uncomfortable for the pt and didn’t even attempt to explain the seriousness of the pt’s condition to them and explain why the mask was necessary. We came into the hospital with our pt’s 02 sat in the 70’s. It was embarrassing and unprofessional. I was planning on brushing it off but it is starting to bother me more and more that such bad pt care was performed in the back of the rig I was working. (Only reason I didn’t tech it is because I wanted to arrive at the hospital in one piece.) This is not a new EMT but I am genuinely worried about how they will handle future calls and how this call would’ve went had there been a less experienced basic running with my partner. So my question to those more experienced than myself, how do I handle this without it getting messy? I’m really not the type of person to rat a partner out but this shift was a nightmare. I don’t want to be on bad terms or gain a reputation as “that guy” but this was seriously bad.